Sierra Leone
Practice Relating to Rule 151. Individual Responsibility
Section A. Individual criminal responsibility
Sierra Leone’s Instructor Manual (2007) states:
Individual Responsibility
- Every member of the [Republic of Sierra Leone Armed Forces] has a personal responsibility to comply with the law of armed conflict.
- Ensure that it is complied with by others and to take action when violations are encountered.
- Any member[s] of the [Republic of Sierra Leone Armed Forces] who
commit, order, assist, fail to prevent or fail to report serious violation[s] of the law of armed conflict commit war crimes for which they can be tried and, if found guilty, punish[ed].

[emphasis in original]
Sierra Leone’s Geneva Conventions Act (2012) states:
Part 1 – Preliminary
1. Interpretation.
In this Act, unless the context otherwise requires –
“Conventions” means
(i) the Geneva Convention for the Amelioration of the Condition of the Wounded and Sick in Armed Forces in the field, done at Geneva on 12th August 1949;
(ii) the Geneva Convention related to the Amelioration of Wounded, Sick and Shipwrecked Members of the Armed Forces at Sea, done at Geneva on 12th August 1949;
(iii) the Geneva Convention related to the Treatment of Prisoners of War, done at Geneva on 12th August 1949;
(iv) the Geneva Convention related to the Protection of Civilian Persons in Time of war, done at Geneva on12th August 1949;
…
“Protocols” means –
(i) the Protocol, additional to the Geneva Conventions of 12th August 1949, relating to the Protection of Victims of International Armed Conflicts (Protocol I) done on 10th June 1977;
(ii) the Protocol, additional to the Geneva Conventions of 12th August 1949, relating to the Protection of Victims of Non-International Armed Conflicts (Protocol II) done on 10th June 1977.
2. Grave breaches of the Conventions and the First Protocol.
(1) A person of whatever nationality commits an offence if that person, whether within or outside Sierra Leone[,] commits, aids, abets or procures any other person to commit a grave breach specified in –
(a) article 50 of the First Geneva Convention;
(b) article 51 of the Second Geneva Convention;
(c) article 130 of the Third Geneva Convention;
(d) article 147 of the Fourth Geneva Convention;
(e) paragraph 4 of article 11 or paragraph 2, 3, or 4 of Article 85 of the First Protocol.
(2) A person who commits an offence under subsection (1) is liable on conviction –
(a) in the case of a grave breach which involves the willful killing of a person protected by the relevant Convention or Protocol to imprisonment for life;
(b) in the case of any other grave breach, to imprisonment for a term not less than 10 years and not exceeding twenty five years.
(3) A person who in Sierra Leone commits, abets, aids or procures any other person to commit a breach of the Conventions or Protocols not covered under subsection (1) commits an offence and is liable on conviction to imprisonment for a term not less than 10 years and not exceeding twenty five years.
(4) A citizen of Sierra Leone who outside Sierra Leone commits or aids, abets or procures the commission by another person of a breach of any of the Conventions or Protocols not covered under subsection (1) commits an offence and is liable on conviction to imprisonment for a term not less than 10 years and not exceeding 25 years.
(5) Where a person commits an offence under this section outside Sierra Leone, that person may be tried and punished as if the offence was committed in Sierra Leone.